  2: 2, 3, 5, 7, 13, 17, 19, 31, 61, 89, 107, 127, 521, 607 
  3: 3, 7, 13, 71, 103, 541 
  4: 2 
  5: 3, 7, 11, 13, 47, 127, 149, 181, 619, 929 
  6: 2, 3, 7, 29, 71, 127, 271, 509 
  7: 5, 13, 131, 149 
  8: 3 
  9:  
 10: 2, 19, 23, 317 
 11: 17, 19, 73, 139, 907 
 12: 2, 3, 5, 19, 97, 109, 317, 353, 701 
 13: 5, 7, 137, 283, 883, 991 
 14: 3, 7, 19, 31, 41 
 15: 3, 43, 73, 487 
 16: 2